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 Botanic Garden >> Gardening >  >> Question and Answer >> Irrigation

Toro DDC-6 Frozen After Reset: Recovery Steps

Unfreezing a Toro DDC-6 Controller

If the DDC-6 locks up after a reset—jumping to Time/Day but accepting no input—the microprocessor has likely crashed.

Hard Reset Procedure

  1. Remove the 9 V backup battery.
  2. Disconnect AC power (unplug or turn off breaker).
  3. Wait 60 seconds.
  4. Restore AC power without the battery.
  5. Attempt to program.

If Still Frozen

The microprocessor is damaged. The DDC-6 is not user-repairable. Replace with:

  • Toro DDC-6 (exact replacement)
  • Or upgrade to Toro TMC-212 / TMC-424 for more features.

Always use a surge-protected outlet for the new controller.

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